SMR100E SUMMIT [Summit Microelectronics, Inc.], SMR100E Datasheet

SMR100E

Manufacturer Part Number

SMR100E

Description

Programmable Long-Delay Push-Button Reset Controller for Consumer Equipment

Manufacturer

SUMMIT [Summit Microelectronics, Inc.]

Datasheet

1.SMR100E.pdf (9 pages)

Current page: 1 of 9
Download datasheet (601Kb)

• Satellite and Cable-TV Set-top box

• Handheld PCs, Cameras, Camcorders, PDAs

• Security/Medical Alert Systems

Programmable Long-Delay Push-Button Reset Controller for Consumer Equipment

FEATURES & APPLICATIONS

• De-Bounced Reset Input with up to 40 Second

• External Push-Button Control Provides a

• Reset Signal at 3.0V with a Programmable

• Brownout Warning Signal whenever the supply

• Programmable Glitch Filtering of Brownout

• 8 Pin SOIC Package

• 6 ball Ultra CSP

Applications

SIMPLIFIED APPLICATIONS DRAWING

Figure 1 – Applications Schematic using the SMR100 to supervise the supply to digital components. As

shown, the SMR100 is designed to use a minimum of external components.

The Summit Web Site can be accessed by “right” or “left” mouse clicking on the link:

Manual

Switch

Reset

Programmable Delay Time

Reliable End-User System Reset Function

Timeout Period

dips below 3.1V

Warning (BAD_PWR#) and Reset Function

3.3V

T H I S P R O D U C T H A S R E A C H E D E N D O F L I F E

RESET_IN#

(Chip-Scale) Package

0.1µf

SMR100

RESET_OUT#

BAD_PWR#

FILT_CAP

TRIM_C

2004 • 1717 Fox Drive • San Jose CA 95131 • Phone 408 436-9890 • FAX 408 436-9897

2076 1.6 06/30/04

INTRODUCTION

The SMR100 programmable reset controller is

designed for consumer applications specified by

Satellite-TV set-top box standards. The SMR100

provides a satellite box controller solution during initial

setup, changing programming cards and/or system

reset needs without removing power. The part can

accommodate a long-delay hold down of an external

reset push-button using an internal programmable de-

bounced timer.

however, multiplexed programming pins are also

provided for in-system programming for prototype

purposes.

The required hold down time is programmable from

0.325 to 40 Sec with an internal on-chip oscillator.

Accurate warning of a 3.1V brownout condition

(BAD_PWR#),

(RESET_OUT#) timeout period when the VDD supply

pin reaches 3.0V are also provided. During a reset

(RESET_OUT#), the part enables the “BAD_PWR#” or

brownout warning output until the reset has cleared. A

programmable glitch filter avoids nuisance tripping of

the internal comparators.

ASIC

and

The part is factory programmed,

http://www.summitmicro.com/

programmable

SMR100

µP

3.3V

reset

Related parts for SMR100E

SMR100E Summary of contents

Page 1

Programmable Long-Delay Push-Button Reset Controller for Consumer Equipment FEATURES & ...

GENERAL DESCRIPTION The SMR100 is a programmable Reset Controller for Consumer Equipment used to monitor the power supply in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with ...

Page 3

INTERNAL BLOCK DIAGRAM 3.3V VDD 1.25V Vref 2 PROG User Reset 100k Pushbutton Reset Up Count 8 KHz Ring Oscillator, RESET _IN# +/-10% accurate GND Figure 3 – SMR100 Controller Internal Block Diagram. Summit Microelectronics, Inc BAD_PWR at 3.1V Programmable ...

Page 4

PACKAGE AND PIN CONFIGURATION TM 6 Ball Ultra CSP Bottom View VDD A1 A2 PROG RESET_OUT# B2 GND BAD_PWR# RESET_IN# PIN DESCRIPTIONS CSP SOIC Pin Pin Pin Type Number Number PWR A2 4 ...

Page 5

ABSOLUTE MAXIMUM RATINGS Temperature Under Bias ......................-55 Storage Temperature............................-65 Terminal Voltage with Respect to GND: V ……………………………...….-0.3V to 6.0V DD PROG, RESET_IN#………...….-0.3V to 16.0V All Others………………………..….VDD + 0.7V Output Short Circuit Current .................. 100mA Reflow Solder Temperature (30 secs)................ 240 ...

Page 6

AC OPERATING CHARACTERISTICS (Over recommended operating conditions, unless otherwise noted. All voltages are relative to GND.) Symbol Parameter T Reset Timeout period RESET_OUT Programmable glitch filter times t GLITCH Programmable Reset Hold-Down t RESET_HD Delay times Summit Microelectronics, Inc Notes ...

Page 7

PACKAGE OUTLINE 1 0.189 - 0.196 (4.80 - 5.00) 0.053 - 0.069 (1.35 - 1.75) 0.013 - 0.020 (0.33 - 0.51) Summit Microelectronics, Inc 8 Pin SOIC Package 0.150 - 0.157 (3.80 - 4.00) 0.004 - 0.010 0.016 - 0.050 ...

Page 8

PACKAGE OUTLINE (CONTINUED) 6 Ball Ultra CSP Summit Microelectronics, Inc TM – Chip Scale Package 2076 1.6 06/30/04 SMR100 Preliminary Information 8 ...

Page 9

... SMR100 Summit Part Number The default device ordering number is SMR100E-100 and is programmed as described in the AC Operating Characteristics table on page 6 and tested over the commercial temperature range. NOTE 1 - This is a Preliminary Information data sheet that describes a Summit product currently in pre-production with limited characterization. ...

Related keywords

SMR100E datasheet
SMR100E data sheet
SMR100E pdf datasheet
SMR100E component
SMR100E part
SMR100E distributor
SMR100E RoHS
SMR100E datasheet download